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    • 1. 发明申请
    • APPARATUS AND METHOD FOR UPLINK POWER CONTROL OF WIRELESS COMMUNICATIONS
    • 用于无线通信的上行功率控制的装置和方法
    • WO2008101053A2
    • 2008-08-21
    • PCT/US2008/053919
    • 2008-02-14
    • QUALCOMM IncorporatedMALLADI, Durga PrasadMONTOJO, JuanDAMNJANOVIC, AleksandarHO, Sai Yiu
    • MALLADI, Durga PrasadMONTOJO, JuanDAMNJANOVIC, AleksandarHO, Sai Yiu
    • H04W52/44H04W52/287H04W52/325
    • Systems and methodologies are described that facilitate employing periodic closed loop power control corrections in a wireless communication environment. A periodic power control command can be sent over a downlink to control and/or correct an uplink power level employed by an access terminal. Each periodic power control command can be generated based upon an uplink periodic transmission sent from the access terminal. The periodic power control commands can be communicated via a Physical Downlink Control Channel (PDCCH) or in-band signaling. Moreover, access terminals can be grouped to enhance efficiency of downlink transfer of the periodic power control commands. The periodic power control commands can be halted upon access terminal uplink resources being deallocated. For instance, these resources can be deallocated after an inactivity period of the access terminal. Thereafter, the access terminal can initiate random access (e.g., leveraging open loop mechanisms) to resume periodic power control command transmission.
    • 描述了便于在无线通信环境中使用周期性闭环功率控制校正的系统和方法。 可以在下行链路上发送周期性功率控制命令以控制和/或校正由接入终端使用的上行链路功率电平。 可以基于从接入终端发送的上行链路周期性传输来生成每个周期性功率控制命令。 可以经由物理下行链路控制信道(PDCCH)或带内信令来传送周期性功率控制命令。 此外,可以对接入终端进行分组,以提高周期性功率控制命令的下行链路传输效率。 当接入终端上行链路资源被解除分配时,可以暂停周期性功率控制命令。 例如,这些资源可以在接入终端的非活动时间段之后解除分配。 此后,接入终端可以发起随机接入(例如,利用开环机制)以恢复周期性功率控制命令传输。